<template>
  <div id="app">
    <div>
      <span>姓名:</span>
      <input type="text" v-model="name" />
    </div>
    <div>
      <span>年龄:</span>
      <input type="number" v-model.number="age" />
    </div>
    <div>
      <span>性别:</span>
      <select v-model="sex">
        <option value="男">男</option>
        <option value="女">女</option>
      </select>
    </div>
    <div>
      <button @click="add">添加/修改</button>
    </div>
    <div>
      <table border="1" cellpadding="10" cellspacing="0">
        <tr>
          <th>序号</th>
          <th>姓名</th>
          <th>年龄</th>
          <th>性别</th>
          <th>操作</th>
        </tr>
        <tr v-for="item in list" :key="item.id">
          <td>{{ item.id }}</td>
          <td>{{ item.name }}</td>
          <td>{{ item.age }}</td>
          <td>{{ item.sex }}</td>
          <td>
            <button @click="del(item.id)">删除</button>
            <button @click="bj(item.id)">编辑</button>
          </td>
        </tr>
      </table>
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {
      name: '',
      age: '',
      sex: '',
      flag: '',
      list: [
        {
          id: 10,
          name: 'xm',
          age: 10,
          sex: '男',
        },
        {
          id: 11,
          name: 'xh',
          age: 11,
          sex: '女',
        },
        {
          id: 12,
          name: 'xhua',
          age: 12,
          sex: '男',
        },
      ],
    }
  },
  methods: {
    del(id) {
      this.list = this.list.filter(item => item.id !== id)
    },
    bj(id) {
      const obj = this.list.find(item => item.id === id)
      this.flag = obj
      const { name, age, sex } = obj
      this.name = name
      this.age = age
      this.sex = sex
    },
    add() {
      if (this.flag === '') {
        this.list.push({
          id: +new Date(),
          name: this.name,
          age: this.age,
          sex: this.sex
        })
      } else {
        this.flag.name = this.name
        this.flag.age = this.age
        this.flag.sex = this.sex
      }

      this.name = ''
      this.age = ''
      this.sex = ''
      this.flag = ''
    }
  },

}
</script>
